Home / 3,459.02-5,188.52-2,072.78

Finding the Fourth Proportional to 3,459.02, 5,188.52 and 2,072.78

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Solution

The fourth proportional to 3,459.02, 5,188.52 and 2,072.78 is: 3,109.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,459.02 : 5,188.52 = 2,072.78 : x
  2. Step 2: Convert to fraction form
    3,459.02/5,188.52 = 2,072.78/x
  3. Step 3: Cross multiply
    3,459.02x = 5,188.52 × 2,072.78
  4. Step 4: Simplify right side
    3,459.02x = 10,754,639.72
  5. Step 5: Solve for x
    x = 10,754,639.72/3,459.02
  6. Step 6: Final answer
    x = 3,109.16

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.